【Zookeeper】zookeeper集群安装

1. 注意事项：
2. 1.注意 /etc/hosts需要配置
3. 2.注意打开每台节点之间的iptables通讯

3台主机配置文件如下

1. [root@DB-23 zookeeper]# more conf/zoo.cfg | grep -v "#"
   
2. tickTime=2000
   
3. initLimit=10
   
4. syncLimit=5
   
5. dataDir=/data/app/zookeeper/data
   
6. clientPort=2181
   
7. autopurge.purgeInterval=1
   
8. 
   
9. server.1=10.32.7.113:2889:3888
   
10. server.2=10.32.7.112:2889:3888
    
11. server.3=10.32.7.111:2889:3888

修改每台机器的myid

1. myid需要与配置文件中的server后面的数字对应
   
2. [root@DB-23 data]# pwd
   /data/app/zookeeper/data
   [root@DB-23 data]# more myid
   1
3. [root@DB-22 data]# pwd
   /data/app/zookeeper/data
   [root@DB-22 data]# more myid
   2
   
   
4. [root@DB-21 data]# pwd
   /data/app/zookeeper/data
   [root@DB-21 data]# more myid
   3
   
   

启动每台机器的zookeeper并校验

1. [root@DB-21 conf]# zk-server status
   
2. JMX enabled by default
   
3. Using config: /data/app/zookeeper/bin/../conf/zoo.cfg
   
4. Mode: follower
   
5. 
   
6. [root@DB-22 conf]# zk-server status
   
7. JMX enabled by default
   
8. Using config: /data/app/zookeeper/bin/../conf/zoo.cfg
   
9. Mode: leader --选出来的leader
   
10. 
    
11. [root@DB-23 data]# zk-server status
    
12. JMX enabled by default
    
13. Using config: /data/app/zookeeper/bin/../conf/zoo.cfg
    
14. Mode: follower